If you're currently stumped for holiday-party themes, Akhtar Nawab's people at La Esquina tell Grub that the Mexican restaurant is now offering catering. Choose from passed apps, platters, multi-course meals, or a bar mitvah–friendly build-your-own-taco setup; house D.J.'s or mariachi bands are optional on the side. Meanwhile, Union Square Events announces they've hired a new executive chef, John Karangis, who's actually kind of an oldie: The toque started his career at Union Square Cafe as a line cook twenty years ago. Aw.